I have an HP ProBook 4510 that wants to go over to the Dark Side of the Force. The screen dims it has been doing this for a while. I think it started about 4 months after we purchased it. I have had it into the local Authorised HP repari center and they have replaced some components but still no luck. I have the user trained that in order to get it to work again they use the Function button on the laptop and change the display setting to something to other then its current setting and then the screen brightens up.

Tim, sorry to read about your ProBook issue. While waiting for a Member to reply first, I been working on your issue. A longtime Member and expert like you, may have already tried what worked for two customers in this post about the same issue for the same ProBook. You will see that:

1. @degale63hw's solution was: "My problem is solved! With the help of my dealer, we installed "HP Quick Launch Buttons". The installation program is located under C:\SwSetup\AppInstal\Setup.exe. Select Hardware Enabling Drivers, and then deselect all entries except the HP Quick Launch Buttons one and select install...."

Tim, sorry to read about your ProBook issue. While waiting for a Member to reply first, I been working on your issue. A longtime Member and expert like you, may have already tried what worked for two customers in this post about the same issue for the same ProBook. You will see that: